Math Problem Statement

Uma função exponencial da forma f(x) = e^x tem a propriedade de ser sua própria derivada, ou seja, f'(x) = e^x. Mediante essa informação, e os conhecimentos sobre as regras de derivação, considere a função: g(x) = e^(x^2 - x). Assinale a alternativa que forneça a derivada de 1ª ordem da função g(x).

Solution

The given problem involves differentiating the function g(x)=ex2xg(x) = e^{x^2 - x}, using the properties of exponential functions and basic differentiation rules.

Step-by-step solution:

1. Function definition:

g(x)=ex2xg(x) = e^{x^2 - x}

2. Differentiation:

We need to apply the chain rule to differentiate this function. The chain rule states that: ddxeu(x)=eu(x)u(x)\frac{d}{dx} e^{u(x)} = e^{u(x)} \cdot u'(x) where u(x)=x2xu(x) = x^2 - x.

  • First, differentiate u(x)=x2xu(x) = x^2 - x with respect to xx: u(x)=2x1u'(x) = 2x - 1

  • Now, apply the chain rule to g(x)g(x): g(x)=ex2x(2x1)g'(x) = e^{x^2 - x} \cdot (2x - 1)

Final expression:

Thus, the derivative of g(x)g(x) is: g(x)=(2x1)ex2xg'(x) = (2x - 1) \cdot e^{x^2 - x}

Correct alternative:

Looking at the provided alternatives, option b) matches this derivative: g(x)=(2x1)ex2xg'(x) = (2x - 1) \cdot e^{x^2 - x}

Would you like further details or have any questions?

Here are 5 related questions to deepen understanding:

  1. How does the chain rule apply to other exponential functions like esin(x)e^{\sin(x)}?
  2. What is the difference between differentiating polynomial and exponential functions?
  3. Can you find the second derivative of g(x)g(x)?
  4. How would the process differ if the function were g(x)=ln(x2x)g(x) = \ln(x^2 - x)?
  5. How does the derivative of exponential functions differ from trigonometric functions?

Tip:

When applying the chain rule, always first identify the inner function and its derivative before multiplying by the derivative of the outer function.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Differentiation
Chain Rule

Formulas

Derivative of exponential function: d/dx(e^u) = e^u * u'(x)
Chain Rule: d/dx[f(g(x))] = f'(g(x)) * g'(x)

Theorems

Chain Rule for Differentiation

Suitable Grade Level

Grades 10-12 or College Level